Is it isolated madmen doing this? Sure. But they’re fueled in part by anti-government rhetoric and other nihilist propaganda that comes from the American right nowadays. Charles Johnson of Little Green Footballs, a former ultra right-wing anti-jihadist type has had a complete re-awakening in recent years and now dedicates his time to exposing this type of rhetoric.

Either way, we needn’t attack the DHS for investigating, researching, and assessing risks to our safety – regardless of how closely aligned the prospective perpetrators are to our way of thinking.